Agent skill

Gpio Baremetal

by mohitmishra786 in mohitmishra786/low-level-dev-skills

Bare-metal GPIO skill for pin configuration and interrupts. An agent skill from mohitmishra786/low-level-dev-skills.

MITAuto-check passedDevelopment

Install Gpio Baremetal

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .claude/skills/gpio-baremetal && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .claude/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .agents/skills/gpio-baremetal && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .agents/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .cursor/skills/gpio-baremetal && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .cursor/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/mohitmishra786/low-level-dev-skills.git --path skills/baremetal/gpio-baremetal

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .gemini/skills/gpio-baremetal && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .gemini/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .github/skills/gpio-baremetal && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .github/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install mohitmishra786/low-level-dev-skills gpio-baremetal --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mohitmishra786/low-level-dev-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/baremetal/gpio-baremetal .opencode/skills/gpio-baremetal && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "gpio-baremetal" agent skill from https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/baremetal/gpio-baremetal into .opencode/skills/gpio-baremetal/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gpio-baremetal", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: gpio-baremetal
GitHub stars: 252
Token cost: ~703 tokens
SKILL.md length: 171 words
Files: 1
Skills in repo: 138
Repo updated: Jun 27, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Bare-metal GPIO skill for pin configuration and interrupts. An agent skill from mohitmishra786/low-level-dev-skills.

Works in 5 steps: STM32 GPIO pattern → Input with pull-up → EXTI interrupt (STM32) → …
Configuring GPIO modes
SKILL.md covers Purpose, When to Use, Workflow and Common Problems, plus 1 more section
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Gpio Baremetal is an agent skill from mohitmishra786/low-level-dev-skills. Bare-metal GPIO skill for pin configuration and interrupts. Use when configuring GPIO modes, alternate functions, pull resistors, or EXTI interrupts on STM32/nRF/ESP32-class MCUs. Activates on queries about GPIO MODER, alternate function, pin interrupt, or LED/button bare-metal setup.

Its SKILL.md is about 700 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Embedded systems. It works with ESP32. The repository describes itself as: A curated suite of AI agent skills for systems and low-level programming with C/C++, Rust, and Zig toolchains, covering compilers, debuggers, profilers, build systems…. The licence is MIT.

When your agent uses it

Configuring GPIO modes
Alternate functions
EXTI interrupts on STM32/nRF/ESP32-class MCUs

Example prompts

“/gpio-baremetal”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

STM32 GPIO pattern
Input with pull-up
EXTI interrupt (STM32)
nRF52 / ESP32 notes
Agent usage

What it can do on your machine

Read from SKILL.md and the folder at commit bdc5847. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are c).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Gpio Baremetal loads about 703 tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 171 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~75
When it runs · the whole SKILL.md, loaded when a task matches: ~703

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from mohitmishra786/low-level-dev-skills at commit bdc5847, republished under its MIT licence (© mohitmishra786). 171 words, ~703 tokens.

Download SKILL.mdSave it as .claude/skills/gpio-baremetal/SKILL.md (or your agent's skills folder).

name: gpio-baremetal
description: Bare-metal GPIO skill for pin configuration and interrupts. Use when configuring GPIO modes, alternate functions, pull resistors, or EXTI interrupts on STM32/nRF/ESP32-class MCUs. Activates on queries about GPIO MODER, alternate function, pin interrupt, or LED/button bare-metal setup.

GPIO (Bare-Metal)

Purpose

Configure and use GPIO without HAL: input/output modes, alternate function mapping, pull-up/down, speed/slew, and pin-change interrupts for LEDs, buttons, and peripheral pin mux.

When to Use

Blink LED or read button before bringing up UART/SPI
Mux pins to USART/SPI alternate functions
EXTI line interrupts on pin edges
Porting GPIO code between vendors

Workflow

1. STM32 GPIO pattern

/* Enable GPIOA clock */
RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;

/* PA5 output — MODER[11:10] = 01 */
GPIOA->MODER &= ~(3U << (5 * 2));
GPIOA->MODER |=  (1U << (5 * 2));

/* Toggle via BSRR — atomic set/reset */
GPIOA->BSRR = (1U << 5);       /* set */
GPIOA->BSRR = (1U << (5+16));  /* reset */

Alternate function (e.g., USART2 TX on PA2):

GPIOA->MODER &= ~(3U << (2*2));
GPIOA->MODER |=  (2U << (2*2));           /* AF mode */
GPIOA->AFR[0] &= ~(0xFU << (2*4));
GPIOA->AFR[0] |=  (7U << (2*4));          /* AF7 = USART2 */

2. Input with pull-up

/* PC13 input, pull-up */
GPIOC->MODER &= ~(3U << (13*2));          /* input mode 00 */
GPIOC->PUPDR &= ~(3U << (13*2));
GPIOC->PUPDR |=  (1U << (13*2));          /* pull-up */

int pressed = !(GPIOC->IDR & (1U << 13)); /* active low */

3. EXTI interrupt (STM32)

/* SYSCFG: map EXTI13 to PC13 */
SYSCFG->EXTICR[3] = (SYSCFG->EXTICR[3] & ~0xFU) | 0x2;  /* port C */
EXTI->IMR  |= (1U << 13);
EXTI->FTSR |= (1U << 13);  /* falling edge */
NVIC_EnableIRQ(EXTI15_10_IRQn);

ISR: check EXTI->PR, clear with write-1.

4. nRF52 / ESP32 notes

Platform	Pattern
nRF52	`NRF_P0->PIN_CNF[n]` — direction, pull, drive
ESP32	`GPIO.out_w1ts`, `GPIO.enable`; IO_MUX for function

Always enable peripheral clock / power domain before pin config.

5. Agent usage

/gpio-baremetal Configure PA2 as USART2 TX alternate function on STM32F4

Common Problems

Symptom	Cause	Fix
Pin stuck	Wrong MODER / not AF	Re-read RM pin table
EXTI storm	No debounce / floating input	Enable pull; debounce in software
AF mismatch	Wrong AFR nibble	Pin-specific AF table in RM
No toggle visible	Wrong port bit / LED active low	Check schematic

skills/baremetal/mmio-and-bit-manipulation — BSRR/MODER masks
skills/baremetal/peripherals-from-datasheet — RM pinout tables
skills/baremetal/uart-serial-baremetal — AF mux for serial

Files

Just SKILL.md in skills/baremetal/gpio-baremetal of mohitmishra786/low-level-dev-skills.

Open the folder on GitHubat commit bdc5847

Compare with similar skills

Gpio Baremetal next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Gpio Baremetal compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gpio Baremetal this skillmohitmishra786/low-level-dev-skills	252	—	~703	Automated safety check: Pass	MIT	3 mo ago
RuView Hardware Setupruvnet/RuView	97k	—	~1.8k	Automated safety check: Notes	MIT	today
Esp32 Firmware Engineeralxv2016/folloup-sticky	117	1 repos	~3.8k	Automated safety check: Pass	GPL-3.0	2 mo ago
RuView mmWave Radar Setupruvnet/RuView	97k	—	~907	Automated safety check: Notes	MIT	today
Embedded DebugFastLED/FastLED	7.5k	—	~1.4k	Automated safety check: Pass	MIT	today
Auto EmbeddedDunCanYounG-1/MICU-auto-embedded	253	—	~1.6k	Automated safety check: Pass	CC-BY-NC-4.0	4 days ago

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Questions about Gpio Baremetal

What does Gpio Baremetal do?

Bare-metal GPIO skill for pin configuration and interrupts. An agent skill from mohitmishra786/low-level-dev-skills. Gpio Baremetal is an agent skill from mohitmishra786/low-level-dev-skills. Bare-metal GPIO skill for pin configuration and interrupts.

When should I use Gpio Baremetal?

Gpio Baremetal fits situations like: configuring GPIO modes; alternate functions; EXTI interrupts on STM32/nRF/ESP32-class MCUs.

How do I install Gpio Baremetal in Claude Code?

Run `npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a claude-code`. Or copy the skill folder (skills/baremetal/gpio-baremetal in mohitmishra786/low-level-dev-skills) into .claude/skills/gpio-baremetal in your project. Claude Code loads it when a task matches its description.

How do I install Gpio Baremetal in Codex?

Run `npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a codex`. Or copy the skill folder (skills/baremetal/gpio-baremetal in mohitmishra786/low-level-dev-skills) into .agents/skills/gpio-baremetal in your project. Codex loads it when a task matches its description.

Can I use Gpio Baremetal in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mohitmishra786/low-level-dev-skills --skill gpio-baremetal -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gpio-baremetal, .gemini/skills/gpio-baremetal, .github/skills/gpio-baremetal and .opencode/skills/gpio-baremetal in your project.

What does Gpio Baremetal need to run?

SKILL.md names no scripts, command-line tools or credentials: Gpio Baremetal is instructions for the agent only.

Does Gpio Baremetal access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Gpio Baremetal safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Gpio Baremetal use?

Gpio Baremetal is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gpio Baremetal use?

About 703 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Gpio Baremetal?

Skills that share tags, products or a category with Gpio Baremetal: RuView Hardware Setup (ruvnet/RuView, 97k stars), Esp32 Firmware Engineer (alxv2016/folloup-sticky, 117 stars), RuView mmWave Radar Setup (ruvnet/RuView, 97k stars) and Embedded Debug (FastLED/FastLED, 7.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gpio Baremetal?

mohitmishra786 (a GitHub user) maintains it in mohitmishra786/low-level-dev-skills, which has 252 GitHub stars. The repository holds 138 skills in this directory. The repository was last updated on June 27, 2026.

Source: mohitmishra786/low-level-dev-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Gpio Baremetal

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

GPIO (Bare-Metal)

Purpose

When to Use

Workflow

1. STM32 GPIO pattern

2. Input with pull-up

3. EXTI interrupt (STM32)

4. nRF52 / ESP32 notes

5. Agent usage

Common Problems

Related Skills

Files

Compare with similar skills

Similar skills

More from mohitmishra786/low-level-dev-skills

Related

Questions about Gpio Baremetal